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research-article

Damage-mitigating Predictive Control of Airfoil Flutter for a General Hypersonic Flight Vehicle

[+] Author and Article Information
Xiaohui Zhang

No. 29, Jiangjun Road Nanjing, Jiangsu Province 211106 China zhangxiaoh@nuaa.edu.cn

Yu-Hui Wang

No 29, Yu-Dao Street Nanjing, Jiangsu Province 210016 China wangyh@nuaa.edu.cn

Xingkai Feng

Nanjing University of Aeronautics and Astronautics Nanjing, Jiangsu Province 211106 China 15651015981@163.com

Siyuan Hou

Nanjing University of Aeronautics and Astronautics Nanjing, Jiangsu Province 211106 China a446782855@qq.com

1Corresponding author.

Contributed by the Technical Committee on Vibration and Sound of ASME for publication in the Journal of Vibration and Acoustics. Manuscript received August 1, 2018; final manuscript received April 10, 2019; published online xx xx, xxxx. Assoc. Editor: Alper Erturk.

*This study was supported by the National Natural Science Foundation of China (Grant No. 61773204).

ASME doi:10.1115/1.4043511 History: Received August 01, 2018; Accepted April 10, 2019

Abstract

This paper aims to investigate the airfoil flutter damage-mitigating problem in hypersonic flow. A new adaptive robust nonlinear predictive control (RNPC) law is designed in this paper to mitigate the damage during the airfoil flutter of a generic hypersonic flight vehicle. A three-degree-of-freedom airfoil dynamic motion model is established, in which the third piston theory is employed to derive the unsteady aerodynamics. Then, the complicated responses of the hypersonic airfoil flutter model are analyzed. In order to mitigate the damage of the airfoil, a predictive controller is designed by introducing an adaptive predictive period and asymptotical stability analysis of the RNPC is performed. Subsequently, based on the nonlinear aerodynamics of the airfoil and damage accumulation model, the damage of airfoil is observed online. Simulation results illustrate the effectiveness of the proposed method.

Copyright © 2019 by ASME
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